| 1 | /* SPDX-License-Identifier: ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) */ |
| 2 | /* |
| 3 | * ePAPR hcall interface |
| 4 | * |
| 5 | * Copyright 2008-2011 Freescale Semiconductor, Inc. |
| 6 | * |
| 7 | * Author: Timur Tabi <timur@freescale.com> |
| 8 | * |
| 9 | * This file is provided under a dual BSD/GPL license. When using or |
| 10 | * redistributing this file, you may do so under either license. |
| 11 | * |
| 12 | * Redistribution and use in source and binary forms, with or without |
| 13 | * modification, are permitted provided that the following conditions are met: |
| 14 | * * Redistributions of source code must retain the above copyright |
| 15 | * notice, this list of conditions and the following disclaimer. |
| 16 | * * Redistributions in binary form must reproduce the above copyright |
| 17 | * notice, this list of conditions and the following disclaimer in the |
| 18 | * documentation and/or other materials provided with the distribution. |
| 19 | * * Neither the name of Freescale Semiconductor nor the |
| 20 | * names of its contributors may be used to endorse or promote products |
| 21 | * derived from this software without specific prior written permission. |
| 22 | * |
| 23 | * |
| 24 | * ALTERNATIVELY, this software may be distributed under the terms of the |
| 25 | * GNU General Public License ("GPL") as published by the Free Software |
| 26 | * Foundation, either version 2 of that License or (at your option) any |
| 27 | * later version. |
| 28 | * |
| 29 | * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY |
| 30 | * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 31 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 32 | * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY |
| 33 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 34 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 35 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 36 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 37 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 38 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 39 | */ |
| 40 | |
| 41 | #ifndef _ASM_POWERPC_EPAPR_HCALLS_H |
| 42 | #define _ASM_POWERPC_EPAPR_HCALLS_H |
| 43 | |
| 44 | #define EV_BYTE_CHANNEL_SEND 1 |
| 45 | #define EV_BYTE_CHANNEL_RECEIVE 2 |
| 46 | #define EV_BYTE_CHANNEL_POLL 3 |
| 47 | #define EV_INT_SET_CONFIG 4 |
| 48 | #define EV_INT_GET_CONFIG 5 |
| 49 | #define EV_INT_SET_MASK 6 |
| 50 | #define EV_INT_GET_MASK 7 |
| 51 | #define EV_INT_IACK 9 |
| 52 | #define EV_INT_EOI 10 |
| 53 | #define EV_INT_SEND_IPI 11 |
| 54 | #define EV_INT_SET_TASK_PRIORITY 12 |
| 55 | #define EV_INT_GET_TASK_PRIORITY 13 |
| 56 | #define EV_DOORBELL_SEND 14 |
| 57 | #define EV_MSGSND 15 |
| 58 | #define EV_IDLE 16 |
| 59 | |
| 60 | /* vendor ID: epapr */ |
| 61 | #define EV_LOCAL_VENDOR_ID 0 /* for private use */ |
| 62 | #define EV_EPAPR_VENDOR_ID 1 |
| 63 | #define EV_FSL_VENDOR_ID 2 /* Freescale Semiconductor */ |
| 64 | #define EV_IBM_VENDOR_ID 3 /* IBM */ |
| 65 | #define EV_GHS_VENDOR_ID 4 /* Green Hills Software */ |
| 66 | #define EV_ENEA_VENDOR_ID 5 /* Enea */ |
| 67 | #define EV_WR_VENDOR_ID 6 /* Wind River Systems */ |
| 68 | #define EV_AMCC_VENDOR_ID 7 /* Applied Micro Circuits */ |
| 69 | #define EV_KVM_VENDOR_ID 42 /* KVM */ |
| 70 | |
| 71 | /* The max number of bytes that a byte channel can send or receive per call */ |
| 72 | #define EV_BYTE_CHANNEL_MAX_BYTES 16 |
| 73 | |
| 74 | |
| 75 | #define _EV_HCALL_TOKEN(id, num) (((id) << 16) | (num)) |
| 76 | #define EV_HCALL_TOKEN(hcall_num) _EV_HCALL_TOKEN(EV_EPAPR_VENDOR_ID, hcall_num) |
| 77 | |
| 78 | /* epapr return codes */ |
| 79 | #define EV_SUCCESS 0 |
| 80 | #define EV_EPERM 1 /* Operation not permitted */ |
| 81 | #define EV_ENOENT 2 /* Entry Not Found */ |
| 82 | #define EV_EIO 3 /* I/O error occurred */ |
| 83 | #define EV_EAGAIN 4 /* The operation had insufficient |
| 84 | * resources to complete and should be |
| 85 | * retried |
| 86 | */ |
| 87 | #define EV_ENOMEM 5 /* There was insufficient memory to |
| 88 | * complete the operation */ |
| 89 | #define EV_EFAULT 6 /* Bad guest address */ |
| 90 | #define EV_ENODEV 7 /* No such device */ |
| 91 | #define EV_EINVAL 8 /* An argument supplied to the hcall |
| 92 | was out of range or invalid */ |
| 93 | #define EV_INTERNAL 9 /* An internal error occurred */ |
| 94 | #define EV_CONFIG 10 /* A configuration error was detected */ |
| 95 | #define EV_INVALID_STATE 11 /* The object is in an invalid state */ |
| 96 | #define EV_UNIMPLEMENTED 12 /* Unimplemented hypercall */ |
| 97 | #define EV_BUFFER_OVERFLOW 13 /* Caller-supplied buffer too small */ |
| 98 | |
| 99 | #endif /* _ASM_POWERPC_EPAPR_HCALLS_H */ |